Proposal

Construction Revolution

Implant
Bell Cap Bridge
Category

The Implant Method revolutionizing the Global Construction Industry

Rapidly built economical structure foremergency temporary bridges, temporary platforms
and permanent bridges etc.

Prefabricated Steel Single-pier Bridge【Specifications】
・Span：6m
・Bridge Width：6.0m
・Live Load：Live Load Condition A (Japanese Specifications)・Bridge Deck：Steel Deck (2.0m x 6.0m)
・Structural Members：Tubular Pile 800mm O.D.12mm w.t. (SKK400)
Bell Cap 2,200mm O.D. (SS400)
Main Crossbeam(3no. Universal Columns 350x350x12x19)

Characteristics
ApplicationEmergency Temporary Bridge

Geotechnical information can be obtained from pile penetration
resistance force during rotary jack-in installation.
Construction Sequence
Step1: Installation ofTubular Pile

Step2: Installation ofBell Cap

Structural Advantages
・Multi stress dispersion system with thebell cap drastically increasing bearing
capacity and lateral resistance of thepiers
・Embedded depth of tubular piles canbe reduced by the increased stressdispersion effect of the bell cap.

Overview
Plan

Advantages of Construction Method

Temporary Platform foremergency restoration works

Longitudinal Section

Cross Section

Step3: Completion ofPier Structure

Step4: Installation ofMain Crossbeam

Steel Deck

Plant Layout

・Gyropress Method (Rotary Jack-inMethod) is applicable in any groundconditions.
・Real-time geotechnical information canbe obtained during the pile installation
process, which verifies the structural
stability of the bridge.

MainCrossbeam

・The bridge can easily be constructed
and dismantled, therefore it can be reused for future projects.

Bell Cap・Environmentally Friendly (ultra low
noise and vibration)

Tubular Pile

Enabling Temporary Platform

Step5: Installation of
Steel Deck

Step6: Move to next
piling position

A Safety, Economical and Rapid Process!
Implant Bell Cap Bridge

Crawler Crane

Power Unit

Gyro Piler

Attachment

Overview of Implant Bell Cap Bridge

Construction Design & Planning GroupTel : +81-(0)3-3528-2633

1-3-28 Ariake, Koto-ku, Tokyo 135-0063, JapanFax : +81-(0)3-3527-6055 Email : project@giken.com

Global Network : Japan, USA, UK, Germany, Singapore, China
For more contact information, please visit: http://www.giken.com/en/contactus/groupcompanies

Proposal

Construction Revolution

Full-scale Field Tests

The Implant Method revolutionizing the Global Construction IndustryLoad Testings

Details of Structure

1. DateThu 25/02/2016

Steel Deck

2. Location
GIKEN Ltd. Test Field in Konan-shi, Kochi, Japan
3. Purpose
Verification of vertical and lateral bearing
capacity of Implant Bell Cap Bridge
4. Bridge Pier Components
Tubular Pile: 800mm O.D.
L=9.0m (embedded depth of 4.4m)
Bell Cap: 2,200mm O.D.

Vertical Static Load Testing

Universal Column
250×250×9×14(SS400)

Tubular Pile
800mm O.D. – t20(SKK400)

Main Crossbeam

Lateral Static Load Testing

Hydraulic Jack

Hydraulic Jack

Load Cell

Load Cell

Universal Column
350×350×12×19(SS400)
Tensile SteelBarφ36mm
Test Pile
Test Pile
Reaction Pile

Reaction Pile

Bell Capwith bell cap

with bell cap
without bell cap

without bell cap

Load (KN)

Load (KN)

Clamp

Displacement at ground level (mm)Pile Head Displacement (mm)Loads at 80mm pile head displacement (i.e. 10% of the pile diameter)○Tubular Pile without Bell Cap: 577.2kN○Tubular Pile with Bell Cap: 125.1kN○Tubular Pile with Bell Cap: 993.8kN(70% greater than that of the pile without Bell Cap)

Construction Design & Planning GroupTel : +81-(0)3-3528-2633

Load at 15mm lateral displacement at ground level○Tubular Pile without Bell Cap: 78.7kN

ItemMass

Steel Deck
Tubular PileMainCrossbeam
Bell Cap3644kg
233kg/m
2900kg1300kg(60% greater than that of the pile without Bell Cap)
1-3-28 Ariake, Koto-ku, Tokyo 135-0063, JapanFax : +81-(0)3-3527-6055 Email : project@giken.com

Global Network : Japan, USA, UK, Germany, Singapore, China
For more contact information, please visit: http://www.giken.com/en/contactus/groupcompanies